window.onload = function () {
    const container = document.querySelector(".container");
    const h1 = container.querySelector("h1");
    const h3 = container.querySelector("h3");
    // 添加文字
    h1.innerText = "Welcome To ErMao's WebSite!";
    h3.innerText = "欢迎来到二毛的网站！";
    // 添加class
    h1.classList.add("animate__animated");
    h3.classList.add("animate__animated");
    h1.classList.add("animate__fadeInDown");
    h3.classList.add("animate__fadeInUp");
}